Volume 20
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No. 522 30 October 1879
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No. 521 23 October 1879
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No. 520 16 October 1879
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No. 519 9 October 1879
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No. 518 2 October 1879
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No. 517 25 September 1879
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No. 516 18 September 1879
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No. 515 11 September 1879
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No. 514 4 September 1879
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No. 513 28 August 1879
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No. 512 21 August 1879
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No. 511 14 August 1879
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No. 510 7 August 1879
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No. 509 31 July 1879
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No. 508 24 July 1879
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No. 507 17 July 1879
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No. 506 10 July 1879
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No. 505 3 July 1879
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No. 504 26 June 1879
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No. 503 19 June 1879
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No. 502 12 June 1879
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No. 501 5 June 1879
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No. 500 29 May 1879
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No. 499 22 May 1879
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No. 498 15 May 1879
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No. 497 8 May 1879
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No. 496 1 May 1879